./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aba011a2dee79947f4cca7910fc4583b21e1f3cb9acd1affa050aa7677352666 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 22:35:57,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 22:35:57,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 22:35:57,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 22:35:57,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 22:35:57,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 22:35:57,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 22:35:57,971 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 22:35:57,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 22:35:57,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 22:35:57,984 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 22:35:57,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 22:35:57,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 22:35:57,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 22:35:57,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 22:35:57,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 22:35:57,988 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 22:35:57,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 22:35:57,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 22:35:57,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 22:35:57,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 22:35:58,004 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 22:35:58,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 22:35:58,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 22:35:58,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 22:35:58,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 22:35:58,007 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 22:35:58,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 22:35:58,008 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 22:35:58,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 22:35:58,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 22:35:58,009 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 22:35:58,010 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 22:35:58,010 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 22:35:58,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 22:35:58,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 22:35:58,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 22:35:58,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 22:35:58,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 22:35:58,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 22:35:58,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 22:35:58,013 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-21 22:35:58,048 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 22:35:58,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 22:35:58,049 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 22:35:58,049 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 22:35:58,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 22:35:58,050 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 22:35:58,050 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 22:35:58,050 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 22:35:58,050 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 22:35:58,051 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 22:35:58,051 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 22:35:58,051 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 22:35:58,051 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 22:35:58,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 22:35:58,051 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 22:35:58,051 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 22:35:58,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 22:35:58,052 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 22:35:58,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 22:35:58,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 22:35:58,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 22:35:58,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 22:35:58,052 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 22:35:58,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 22:35:58,053 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 22:35:58,053 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 22:35:58,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 22:35:58,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 22:35:58,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 22:35:58,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 22:35:58,054 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 22:35:58,054 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 22:35:58,054 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 22:35:58,054 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aba011a2dee79947f4cca7910fc4583b21e1f3cb9acd1affa050aa7677352666 [2021-12-21 22:35:58,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 22:35:58,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 22:35:58,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 22:35:58,383 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 22:35:58,384 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 22:35:58,385 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c [2021-12-21 22:35:58,435 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24cc610dd/af825c0330dd4be697219e06e9c2cb4a/FLAG2570b08ca [2021-12-21 22:35:58,904 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 22:35:58,912 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c [2021-12-21 22:35:58,926 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24cc610dd/af825c0330dd4be697219e06e9c2cb4a/FLAG2570b08ca [2021-12-21 22:35:59,420 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24cc610dd/af825c0330dd4be697219e06e9c2cb4a [2021-12-21 22:35:59,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 22:35:59,423 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 22:35:59,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 22:35:59,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 22:35:59,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 22:35:59,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:35:59" (1/1) ... [2021-12-21 22:35:59,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59c7a576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:59, skipping insertion in model container [2021-12-21 22:35:59,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:35:59" (1/1) ... [2021-12-21 22:35:59,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 22:35:59,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 22:35:59,614 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c[1605,1618] [2021-12-21 22:35:59,729 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:35:59,735 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 22:35:59,743 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c[1605,1618] [2021-12-21 22:35:59,773 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:35:59,785 INFO L208 MainTranslator]: Completed translation [2021-12-21 22:35:59,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:59 WrapperNode [2021-12-21 22:35:59,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 22:35:59,787 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 22:35:59,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 22:35:59,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 22:35:59,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:59" (1/1) ... [2021-12-21 22:35:59,801 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:59" (1/1) ... [2021-12-21 22:35:59,824 INFO L137 Inliner]: procedures = 58, calls = 159, calls flagged for inlining = 56, calls inlined = 102, statements flattened = 765 [2021-12-21 22:35:59,825 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 22:35:59,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 22:35:59,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 22:35:59,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 22:35:59,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:59" (1/1) ... [2021-12-21 22:35:59,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:59" (1/1) ... [2021-12-21 22:35:59,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:59" (1/1) ... [2021-12-21 22:35:59,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:59" (1/1) ... [2021-12-21 22:35:59,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:59" (1/1) ... [2021-12-21 22:35:59,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:59" (1/1) ... [2021-12-21 22:35:59,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:59" (1/1) ... [2021-12-21 22:35:59,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 22:35:59,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 22:35:59,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 22:35:59,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 22:35:59,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:59" (1/1) ... [2021-12-21 22:35:59,855 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:35:59,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:35:59,895 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:35:59,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-21 22:35:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 22:35:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 22:35:59,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 22:35:59,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 22:35:59,976 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 22:35:59,977 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 22:36:00,258 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 22:36:00,264 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 22:36:00,264 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 22:36:00,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:36:00 BoogieIcfgContainer [2021-12-21 22:36:00,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 22:36:00,267 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 22:36:00,267 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 22:36:00,269 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 22:36:00,270 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:36:00,270 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 10:35:59" (1/3) ... [2021-12-21 22:36:00,271 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11b45b32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:36:00, skipping insertion in model container [2021-12-21 22:36:00,271 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:36:00,271 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:35:59" (2/3) ... [2021-12-21 22:36:00,271 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11b45b32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:36:00, skipping insertion in model container [2021-12-21 22:36:00,271 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:36:00,271 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:36:00" (3/3) ... [2021-12-21 22:36:00,272 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product57.cil.c [2021-12-21 22:36:00,298 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 22:36:00,298 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 22:36:00,298 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 22:36:00,299 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 22:36:00,299 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 22:36:00,299 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 22:36:00,299 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 22:36:00,299 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 22:36:00,311 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 196 states, 195 states have (on average 1.358974358974359) internal successors, (265), 195 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:36:00,328 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2021-12-21 22:36:00,329 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:36:00,329 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:36:00,334 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:36:00,334 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:36:00,334 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 22:36:00,335 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 196 states, 195 states have (on average 1.358974358974359) internal successors, (265), 195 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:36:00,340 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2021-12-21 22:36:00,341 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:36:00,341 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:36:00,342 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:36:00,342 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:36:00,354 INFO L791 eck$LassoCheckResult]: Stem: 189#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 125#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 91#L84true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 154#L77true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 82#L92true main_#t~ret5#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 45#L186true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 66#L160true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 143#L682true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 94#L735-2true [2021-12-21 22:36:00,354 INFO L793 eck$LassoCheckResult]: Loop: 94#L735-2true assume !false; 121#L736true assume test_~splverifierCounter~0#1 < 4; 24#L737true test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 51#L745true assume !(0 != test_~tmp~5#1); 185#L745-2true test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 22#L755true assume !(0 != test_~tmp___0~1#1); 193#L755-2true test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 162#L765true assume 0 != test_~tmp___2~0#1; 43#L771-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 7#L931true __utac_acc__Specification5_spec__2_#t~ret34#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34#1;havoc __utac_acc__Specification5_spec__2_#t~ret34#1; 122#L692true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 131#L802true assume !(0 != ~pumpRunning~0); 67#L802-2true assume !(0 != ~systemActive~0); 172#L809-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 111#L281true __utac_acc__Specification5_spec__3_#t~ret35#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret35#1;havoc __utac_acc__Specification5_spec__3_#t~ret35#1; 13#L703true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 31#L703-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 129#L819true assume { :end_inline_timeShift } true; 94#L735-2true [2021-12-21 22:36:00,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:36:00,358 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-21 22:36:00,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:36:00,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372898209] [2021-12-21 22:36:00,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:36:00,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:36:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:36:00,434 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:36:00,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:36:00,465 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:36:00,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:36:00,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1354186772, now seen corresponding path program 1 times [2021-12-21 22:36:00,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:36:00,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824369816] [2021-12-21 22:36:00,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:36:00,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:36:00,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:36:00,474 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:36:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:36:00,480 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:36:00,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:36:00,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1601428117, now seen corresponding path program 1 times [2021-12-21 22:36:00,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:36:00,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564844014] [2021-12-21 22:36:00,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:36:00,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:36:00,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:36:00,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:36:00,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:36:00,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564844014] [2021-12-21 22:36:00,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564844014] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:36:00,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:36:00,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 22:36:00,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734237942] [2021-12-21 22:36:00,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:36:00,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:36:00,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 22:36:00,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-21 22:36:00,761 INFO L87 Difference]: Start difference. First operand has 196 states, 195 states have (on average 1.358974358974359) internal successors, (265), 195 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:36:00,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:36:00,826 INFO L93 Difference]: Finished difference Result 193 states and 251 transitions. [2021-12-21 22:36:00,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 22:36:00,835 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 193 states and 251 transitions. [2021-12-21 22:36:00,838 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2021-12-21 22:36:00,841 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 193 states to 183 states and 241 transitions. [2021-12-21 22:36:00,841 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 183 [2021-12-21 22:36:00,842 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 183 [2021-12-21 22:36:00,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 183 states and 241 transitions. [2021-12-21 22:36:00,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:36:00,844 INFO L681 BuchiCegarLoop]: Abstraction has 183 states and 241 transitions. [2021-12-21 22:36:00,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states and 241 transitions. [2021-12-21 22:36:00,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2021-12-21 22:36:00,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 183 states have (on average 1.3169398907103824) internal successors, (241), 182 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:36:00,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 241 transitions. [2021-12-21 22:36:00,865 INFO L704 BuchiCegarLoop]: Abstraction has 183 states and 241 transitions. [2021-12-21 22:36:00,865 INFO L587 BuchiCegarLoop]: Abstraction has 183 states and 241 transitions. [2021-12-21 22:36:00,866 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-21 22:36:00,866 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 241 transitions. [2021-12-21 22:36:00,867 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2021-12-21 22:36:00,867 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:36:00,867 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:36:00,868 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:36:00,868 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:36:00,868 INFO L791 eck$LassoCheckResult]: Stem: 588#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 500#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 501#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 548#L77 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 549#L92 main_#t~ret5#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 526#L186 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 527#L160 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 535#L682 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 507#L735-2 [2021-12-21 22:36:00,868 INFO L793 eck$LassoCheckResult]: Loop: 507#L735-2 assume !false; 492#L736 assume test_~splverifierCounter~0#1 < 4; 476#L737 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 477#L745 assume !(0 != test_~tmp~5#1); 543#L745-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 468#L755 assume !(0 != test_~tmp___0~1#1); 470#L755-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 559#L765 assume 0 != test_~tmp___2~0#1; 524#L771-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 424#L931 __utac_acc__Specification5_spec__2_#t~ret34#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34#1;havoc __utac_acc__Specification5_spec__2_#t~ret34#1; 425#L692 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 494#L802 assume !(0 != ~pumpRunning~0); 514#L802-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 561#L860 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 583#L834-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 487#L826-3 assume { :end_inline_processEnvironment__wrappee__base } true; 410#L834-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 411#L860-1 assume { :end_inline_processEnvironment } true; 578#L809-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 455#L281 __utac_acc__Specification5_spec__3_#t~ret35#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret35#1;havoc __utac_acc__Specification5_spec__3_#t~ret35#1; 441#L703 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 443#L703-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 506#L819 assume { :end_inline_timeShift } true; 507#L735-2 [2021-12-21 22:36:00,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:36:00,869 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-12-21 22:36:00,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:36:00,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279562415] [2021-12-21 22:36:00,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:36:00,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:36:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:36:00,890 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:36:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:36:00,902 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:36:00,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:36:00,902 INFO L85 PathProgramCache]: Analyzing trace with hash 909614489, now seen corresponding path program 1 times [2021-12-21 22:36:00,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:36:00,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321858341] [2021-12-21 22:36:00,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:36:00,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:36:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:36:00,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:36:00,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:36:00,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321858341] [2021-12-21 22:36:00,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321858341] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:36:00,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:36:00,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 22:36:00,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864706682] [2021-12-21 22:36:00,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:36:00,917 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-21 22:36:00,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:36:00,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 22:36:00,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 22:36:00,918 INFO L87 Difference]: Start difference. First operand 183 states and 241 transitions. cyclomatic complexity: 60 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:36:00,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:36:00,967 INFO L93 Difference]: Finished difference Result 253 states and 321 transitions. [2021-12-21 22:36:00,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 22:36:00,967 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 253 states and 321 transitions. [2021-12-21 22:36:00,969 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 174 [2021-12-21 22:36:00,970 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 253 states to 253 states and 321 transitions. [2021-12-21 22:36:00,970 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 253 [2021-12-21 22:36:00,971 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 253 [2021-12-21 22:36:00,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 253 states and 321 transitions. [2021-12-21 22:36:00,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:36:00,972 INFO L681 BuchiCegarLoop]: Abstraction has 253 states and 321 transitions. [2021-12-21 22:36:00,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states and 321 transitions. [2021-12-21 22:36:00,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2021-12-21 22:36:00,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 253 states have (on average 1.2687747035573123) internal successors, (321), 252 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:36:00,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 321 transitions. [2021-12-21 22:36:00,979 INFO L704 BuchiCegarLoop]: Abstraction has 253 states and 321 transitions. [2021-12-21 22:36:00,979 INFO L587 BuchiCegarLoop]: Abstraction has 253 states and 321 transitions. [2021-12-21 22:36:00,979 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-21 22:36:00,979 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 253 states and 321 transitions. [2021-12-21 22:36:00,980 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 174 [2021-12-21 22:36:00,981 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:36:00,981 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:36:00,981 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:36:00,981 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:36:00,981 INFO L791 eck$LassoCheckResult]: Stem: 1039#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 940#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 941#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 991#L77 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 992#L92 main_#t~ret5#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 967#L186 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 968#L160 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 976#L682 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 947#L735-2 [2021-12-21 22:36:00,982 INFO L793 eck$LassoCheckResult]: Loop: 947#L735-2 assume !false; 932#L736 assume test_~splverifierCounter~0#1 < 4; 916#L737 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 917#L745 assume !(0 != test_~tmp~5#1); 985#L745-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 909#L755 assume !(0 != test_~tmp___0~1#1); 911#L755-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1006#L765 assume 0 != test_~tmp___2~0#1; 965#L771-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 861#L931 __utac_acc__Specification5_spec__2_#t~ret34#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34#1;havoc __utac_acc__Specification5_spec__2_#t~ret34#1; 862#L692 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 934#L802 assume !(0 != ~pumpRunning~0); 954#L802-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 1008#L860 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 1030#L834-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 854#L289-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 855#L294-1 isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 975#L980-3 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0; 912#L980-5 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 913#L986-1 processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1; 1004#L838-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 969#L826-2 assume { :end_inline_processEnvironment__wrappee__base } true; 970#L834-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1038#L860-1 assume { :end_inline_processEnvironment } true; 1101#L809-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 1100#L281 __utac_acc__Specification5_spec__3_#t~ret35#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret35#1;havoc __utac_acc__Specification5_spec__3_#t~ret35#1; 881#L703 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1); 883#L703-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 946#L819 assume { :end_inline_timeShift } true; 947#L735-2 [2021-12-21 22:36:00,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:36:00,982 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-12-21 22:36:00,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:36:00,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722205416] [2021-12-21 22:36:00,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:36:00,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:36:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:36:00,992 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:36:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:36:01,001 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:36:01,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:36:01,002 INFO L85 PathProgramCache]: Analyzing trace with hash -92718639, now seen corresponding path program 1 times [2021-12-21 22:36:01,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:36:01,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627741666] [2021-12-21 22:36:01,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:36:01,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:36:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:36:01,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:36:01,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:36:01,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627741666] [2021-12-21 22:36:01,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627741666] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:36:01,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:36:01,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 22:36:01,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850891048] [2021-12-21 22:36:01,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:36:01,045 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-21 22:36:01,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:36:01,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 22:36:01,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 22:36:01,046 INFO L87 Difference]: Start difference. First operand 253 states and 321 transitions. cyclomatic complexity: 70 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:36:01,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:36:01,195 INFO L93 Difference]: Finished difference Result 1179 states and 1490 transitions. [2021-12-21 22:36:01,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-21 22:36:01,195 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1179 states and 1490 transitions. [2021-12-21 22:36:01,201 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 805 [2021-12-21 22:36:01,206 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1179 states to 1179 states and 1490 transitions. [2021-12-21 22:36:01,206 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1179 [2021-12-21 22:36:01,207 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1179 [2021-12-21 22:36:01,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1179 states and 1490 transitions. [2021-12-21 22:36:01,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:36:01,210 INFO L681 BuchiCegarLoop]: Abstraction has 1179 states and 1490 transitions. [2021-12-21 22:36:01,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1179 states and 1490 transitions. [2021-12-21 22:36:01,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1179 to 495. [2021-12-21 22:36:01,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 495 states have (on average 1.2565656565656567) internal successors, (622), 494 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:36:01,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 622 transitions. [2021-12-21 22:36:01,248 INFO L704 BuchiCegarLoop]: Abstraction has 495 states and 622 transitions. [2021-12-21 22:36:01,248 INFO L587 BuchiCegarLoop]: Abstraction has 495 states and 622 transitions. [2021-12-21 22:36:01,248 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-21 22:36:01,248 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 495 states and 622 transitions. [2021-12-21 22:36:01,250 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 346 [2021-12-21 22:36:01,250 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:36:01,250 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:36:01,252 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:36:01,252 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:36:01,252 INFO L791 eck$LassoCheckResult]: Stem: 2517#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 2396#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 2397#L84 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2451#L77 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 2452#L92 main_#t~ret5#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1; 2426#L186 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 2427#L160 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2435#L682 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2405#L735-2 [2021-12-21 22:36:01,263 INFO L793 eck$LassoCheckResult]: Loop: 2405#L735-2 assume !false; 2387#L736 assume test_~splverifierCounter~0#1 < 4; 2388#L737 test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 2793#L745 assume !(0 != test_~tmp~5#1); 2791#L745-2 test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 2789#L755 assume !(0 != test_~tmp___0~1#1); 2787#L755-2 test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 2785#L765 assume 0 != test_~tmp___2~0#1; 2784#L771-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 2783#L931 __utac_acc__Specification5_spec__2_#t~ret34#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34#1;havoc __utac_acc__Specification5_spec__2_#t~ret34#1; 2782#L692 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2412#L802 assume !(0 != ~pumpRunning~0); 2413#L802-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 2470#L860 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1; 2649#L834-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 2647#L289-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 2306#L294-1 isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1; 2644#L980-3 assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0; 2640#L980-5 isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1; 2634#L986-1 processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1; 2628#L838-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2428#L826-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2300#L834-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2301#L860-1 assume { :end_inline_processEnvironment } true; 2490#L809-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 2349#L281 __utac_acc__Specification5_spec__3_#t~ret35#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret35#1;havoc __utac_acc__Specification5_spec__3_#t~ret35#1; 2350#L703 assume 2 != __utac_acc__Specification5_spec__3_~tmp~4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1; 2523#L931-1 __utac_acc__Specification5_spec__3_#t~ret36#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret36#1;havoc __utac_acc__Specification5_spec__3_#t~ret36#1; 2524#L707 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 2777#L703-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2404#L819 assume { :end_inline_timeShift } true; 2405#L735-2 [2021-12-21 22:36:01,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:36:01,264 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2021-12-21 22:36:01,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:36:01,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629579334] [2021-12-21 22:36:01,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:36:01,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:36:01,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:36:01,272 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:36:01,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:36:01,280 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:36:01,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:36:01,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1072605420, now seen corresponding path program 1 times [2021-12-21 22:36:01,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:36:01,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436966492] [2021-12-21 22:36:01,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:36:01,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:36:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:36:01,286 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:36:01,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:36:01,293 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:36:01,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:36:01,294 INFO L85 PathProgramCache]: Analyzing trace with hash 260565219, now seen corresponding path program 1 times [2021-12-21 22:36:01,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:36:01,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48011035] [2021-12-21 22:36:01,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:36:01,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:36:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:36:01,304 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:36:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:36:01,319 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:36:03,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 10:36:03 BoogieIcfgContainer [2021-12-21 22:36:03,736 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 22:36:03,737 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 22:36:03,737 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 22:36:03,737 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 22:36:03,737 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:36:00" (3/4) ... [2021-12-21 22:36:03,739 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-21 22:36:03,771 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 22:36:03,771 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 22:36:03,772 INFO L158 Benchmark]: Toolchain (without parser) took 4349.23ms. Allocated memory was 102.8MB in the beginning and 148.9MB in the end (delta: 46.1MB). Free memory was 70.3MB in the beginning and 64.8MB in the end (delta: 5.6MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. [2021-12-21 22:36:03,772 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory is still 36.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:36:03,772 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.19ms. Allocated memory is still 102.8MB. Free memory was 70.3MB in the beginning and 72.4MB in the end (delta: -2.1MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2021-12-21 22:36:03,773 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.03ms. Allocated memory is still 102.8MB. Free memory was 72.4MB in the beginning and 68.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-21 22:36:03,773 INFO L158 Benchmark]: Boogie Preprocessor took 24.39ms. Allocated memory is still 102.8MB. Free memory was 68.2MB in the beginning and 65.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:36:03,773 INFO L158 Benchmark]: RCFGBuilder took 416.06ms. Allocated memory is still 102.8MB. Free memory was 65.6MB in the beginning and 41.5MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-12-21 22:36:03,774 INFO L158 Benchmark]: BuchiAutomizer took 3469.68ms. Allocated memory was 102.8MB in the beginning and 148.9MB in the end (delta: 46.1MB). Free memory was 40.9MB in the beginning and 67.9MB in the end (delta: -27.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-12-21 22:36:03,774 INFO L158 Benchmark]: Witness Printer took 34.59ms. Allocated memory is still 148.9MB. Free memory was 67.9MB in the beginning and 64.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:36:03,776 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory is still 36.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 361.19ms. Allocated memory is still 102.8MB. Free memory was 70.3MB in the beginning and 72.4MB in the end (delta: -2.1MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.03ms. Allocated memory is still 102.8MB. Free memory was 72.4MB in the beginning and 68.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.39ms. Allocated memory is still 102.8MB. Free memory was 68.2MB in the beginning and 65.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 416.06ms. Allocated memory is still 102.8MB. Free memory was 65.6MB in the beginning and 41.5MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 3469.68ms. Allocated memory was 102.8MB in the beginning and 148.9MB in the end (delta: 46.1MB). Free memory was 40.9MB in the beginning and 67.9MB in the end (delta: -27.0MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 34.59ms. Allocated memory is still 148.9MB. Free memory was 67.9MB in the beginning and 64.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 495 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 684 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 495 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2151 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2151 mSDsluCounter, 2084 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1220 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 193 IncrementalHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 864 mSDtfsCounter, 193 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 735]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e052d89=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17235ab5=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e163474=0, tmp___0=0, retValue_acc=0, tmp=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26fef3b8=0, retValue_acc=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e2b44a8=0, retValue_acc=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5accaf6b=0, \result=1, \result=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@435d8885=29, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58c3fa43=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f37391d=0, tmp___2=29, \result=0, cleanupTimeShifts=4, switchedOnBeforeTS=0, tmp=1, \result=0, tmp___0=0, head=0, \result=1, tmp___1=0, NULL=0, retValue_acc=1, waterLevel=1, systemActive=1, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ec5c4a4=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ba7642d=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 735]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L97] int cleanupTimeShifts = 4; [L206] int waterLevel = 1; [L207] int methaneLevelCritical = 0; [L478] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L676] int switchedOnBeforeTS ; [L792] int pumpRunning = 0; [L793] int systemActive = 1; [L177] int retValue_acc ; [L178] int tmp ; [L182] FCALL select_helpers() [L183] FCALL select_features() [L184] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); [L184] RET, EXPR valid_product() [L184] tmp = valid_product() [L186] COND TRUE \read(tmp) [L188] FCALL setup() [L189] CALL runTest() [L170] CALL __utac_acc__Specification5_spec__1() [L681] switchedOnBeforeTS = 0 [L170] RET __utac_acc__Specification5_spec__1() [L171] CALL test() [L726] int splverifierCounter ; [L727] int tmp ; [L728] int tmp___0 ; [L729] int tmp___1 ; [L730] int tmp___2 ; [L733] splverifierCounter = 0 Loop: [L735] COND TRUE 1 [L737] COND TRUE splverifierCounter < 4 [L743] tmp = __VERIFIER_nondet_int() [L745] COND FALSE !(\read(tmp)) [L753] tmp___0 = __VERIFIER_nondet_int() [L755] COND FALSE !(\read(tmp___0)) [L763] tmp___2 = __VERIFIER_nondet_int() [L765] COND TRUE \read(tmp___2) [L778] CALL timeShift() [L800] CALL __utac_acc__Specification5_spec__2() [L690] CALL, EXPR isPumpRunning() [L927] int retValue_acc ; [L930] retValue_acc = pumpRunning [L931] return (retValue_acc); [L690] RET, EXPR isPumpRunning() [L690] switchedOnBeforeTS = isPumpRunning() [L800] RET __utac_acc__Specification5_spec__2() [L802] COND FALSE !(\read(pumpRunning)) [L809] COND TRUE \read(systemActive) [L811] CALL processEnvironment() [L857] int tmp ; [L860] COND FALSE !(\read(pumpRunning)) [L875] CALL processEnvironment__wrappee__highWaterSensor() [L831] int tmp ; [L834] COND TRUE ! pumpRunning [L836] CALL, EXPR isHighWaterLevel() [L972] int retValue_acc ; [L973] int tmp ; [L974] int tmp___0 ; [L978] CALL, EXPR isHighWaterSensorDry() [L286] int retValue_acc ; [L289] COND TRUE waterLevel < 2 [L290] retValue_acc = 1 [L291] return (retValue_acc); [L978] RET, EXPR isHighWaterSensorDry() [L978] tmp = isHighWaterSensorDry() [L980] COND TRUE \read(tmp) [L981] tmp___0 = 0 [L985] retValue_acc = tmp___0 [L986] return (retValue_acc); [L836] RET, EXPR isHighWaterLevel() [L836] tmp = isHighWaterLevel() [L838] COND FALSE !(\read(tmp)) [L844] FCALL processEnvironment__wrappee__base() [L875] RET processEnvironment__wrappee__highWaterSensor() [L811] RET processEnvironment() [L817] CALL __utac_acc__Specification5_spec__3() [L696] int tmp ; [L697] int tmp___0 ; [L701] CALL, EXPR getWaterLevel() [L277] int retValue_acc ; [L280] retValue_acc = waterLevel [L281] return (retValue_acc); [L701] RET, EXPR getWaterLevel() [L701] tmp = getWaterLevel() [L703] COND TRUE tmp != 2 [L705] CALL, EXPR isPumpRunning() [L927] int retValue_acc ; [L930] retValue_acc = pumpRunning [L931] return (retValue_acc); [L705] RET, EXPR isPumpRunning() [L705] tmp___0 = isPumpRunning() [L707] COND FALSE !(\read(tmp___0)) [L817] RET __utac_acc__Specification5_spec__3() [L778] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-21 22:36:03,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)